Slingshot: We reviewed all the XT offer accounts and there is still a lot have haven't activated or billed yet - and won't do for some time. This means the clean up can't happen for around a month.
As a result, the best thing do to is speak to the call centre. They will credit the difference.
I have huge admiration for you but also pity you in your job because you seem to have to clean up a whole lot of stuff :/
I know you couldn't possibly comment but if it weren't for you a lot of us probably wouldn't have had the confidence to do any business with Slingshot.