Sorry, I didn't see you post about getting and using a MAC, somehow I missed it.
What you had to do, as someone has posted, is check what is said in the T & Cs, never mind what you are told on the phone. But I don't think that is the issue.
As you seem to have realised, if you don't use the MAC then everything carries on as before. Making sure BT were aware you had actually left, (not at the time of submitting the MAC to Sky as migrations often fail after that point), is just a wise thing to do.
I don't know if you have read this page
, but it is all covered there, due to this sort of thing happening quite often with several ISPs.
As for the rather strong way you put it, I hope you won't be using that sort of language in the conversations you will have with BT. That will just make people defend their company and colleagues against that accusation, instead of encouraging them to help you out. The person clearly at fault for this going on for more than one month is yourself, and getting stroppy on the phone is always counter-productive wherever the fault lies.
It seems a simple system failure happened. You also seem to have had a helpful person who suggested you ring him on Thursday if the slow-moving cogs of BT had not turned. In your position, for the sake of my blood pressure I would have done exactly that rather than open this thread and start an inevitable discussion of all the doomsday scenarios possible.
There is no reason yet to suggest you have a problem getting a refund, but I recommend you don't talk about "stealing" or "misappropriation" in discussions with BT staff. It started with a system or clerical error and the fact the effect has lasted this long is not relevant.
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