Hi!
Just seen your chat and I too am having the same problem. I thought I was getting somewhere when I spoke to O2 Customer Service (for the 10th time) and she volunteered to take the case up for me and deal with the promotions team on my behalf. She then phones today and says the promotions team need to deal with me direct and they will email me. She said they said that two days ago and what a suprise I have had nothing. I have emailed the promotions team at least 8 times and emailed the O2 complaints team but had no reply. I told the woman I spoke to today that I expect a call from her on Monday and if the promotions team haven't emailed me by then we will go from there. However I have wrote to the complaints address today using a template I found on the Trading Standards website with 14 days to resolve this issue or I will take legal action. I have the advantage that my boyfriend deals with alot of legal matters through his work so I know I have the ability to do this.
I joined o2 in January and have to say the customer service I have received from them has been awful. They are such a big company you think they would be used to dealing with customers... They have advised that it is out of their hands but the way I see it, they were the ones who offered us this voucher so it should be there responsibility to deal with these problems.
I am at the point now where a £50 voucher will not suffice the time and frustration this has caused and I have put this in the letter to them.
I am not holding my breath but I will post back on here if I get a response and wil keep an eye out for your comments to see if you get anywhere.
Maybe we should take a leaf out of the students book and protest outside O2!!