Out of contract but am being given different information by customer service reps.

I signed up for fibre to the home and TV in December 2016. I'm happy with the FTTH, but I'm being screwed by the 1TB limit.  We're a family of 5 - 2 adults and 3 teenage kids. The kids are always watching netflix and playing on-line games so this is why the 1TB is passed each month.

I had major problems with the TV package - those plug thingies - and despite multiple calls to the customer support and new "plug thingies" being sent out to me, the situation didn't improve. The final suggestion from the support team was to run a cable from the modem to the TV. These are at separate sides of the house and there was no way that my wife was going to allow this to happen. In the end, I bit the bullet and signed up to Sky Q (best decision I've ever made) and had to suck up a number of months paying for a TV service that was useless.  When my contract was up, I called eir to cancel the TV package, so I'm just paying eir for FTTH (as well as the over-usage charge).

I was delighted when I read about the 1TB cap being removed so I called today and asked to get this removed from my account - as had been advised by the eir reps.  I got through in about 5 minutes - which seems to be a lot quicker than others - and I explained to the helpful customer support rep what I needed.  He informed me that the 1TB could only be removed from new contracts so I told him that I was prepared to sign another contract as I was happy with the FTTH. He said he could do this, but as I'm a current customer, that the 1TB limit would still apply because I wouldn't be considered a new customer even though I was signing a new contract. I asked him if he was sure about this so he consulted with some of his colleagues and they confirmed this to him.  

However, he did say that if I added a new service to my account that I'd be considered a new customer and the 1TB limit wouldn't apply. I asked him what "services" I'd have to add and he said either TV or a sim only mobile plan. I told him about my experience with the TV so I wasn't interested in that. He asked me if I'd be interested in their mobile plan. I told him that I was happy with my current mobile plan. He then said that I could sign up for a 30-day rolling contract and this would give me the real unlimited broadband and at the end of the first 30 days that I could call up and cancel the plan. He said that the 1TB wouldn't apply if I removed the mobile sim after the first month. Just to be sure I repeated what he said and asked him to confirm this.  I reminded him that our call was probably being recorded by eir and that I'd be referring to this if I signed up and then cancelled the SIM plan and then found out that the 1TB limit was re-applied. He checked with his colleagues again and confirmed what he had said previously.  I asked how much the 30-day sim only plan was and he said that he didn't know but that he'd pass me on the section that deals with this.

This other department answered after about 15 minutes and I explained the situation to the very helpful lady. She said that I didn't need to add a service to my account. She said that I'd just need to change the phone plan that's part of my current bundle and that the 1TB limit would be removed from the account.  I explained what the previous support agent had told me and she confirmed that if I changed any part of my current bundle that I'd be considered a new customer and the 1TB limit wouldn't apply. My current plan has unlimited calls as well as some minutes to the UK. I never use the phone, so I said that I'd like to downgrade from this. She said the closest to what I'm looking for is the off-peak calls where calls are free between 7:30 pm. and 7:30 am. I was happy with that, so I asked her to go ahead and set up a new contract for me.  She tried to do this, but she said that there was a "pending order" on my account since June. She looked into it and this was my request to remove the TV package from my account. She said that she'd have to get this removed before she could set up the new account for me. However, she couldn't remove this, so she'd have to get somebody else to do this and that she'd call me tomorrow (Thursday).  I told her that I'd be out of the country until Sunday evening so she's going to call me on Monday afternoon to set up the new account.

Tracey, Sarah, Kyle or Thomas, can you confirm which of the agents that I spoke to are correct?  As a current customer, who is OUT of contract, can I 
1. Sign a new contract with my current bundle (FTTH and telephone peak calls) and have the 1TB cap removed;
2. Sign a new contract to keep my FTTH and the off-peak calls and have the 1TB cap removed; or
3. Sign a new contract that has FTTH, call bundle (I don't really care whether it's the peak or off-peak calls) and add a 30 day rolling sim contract and have the 1TB cap removed.

If #3 is correct, could I cancel the sim plan after the first 30 days and still have the 1TB cap removed from the account?

Looking forward to hearing back from you!