REFUND NEVER PAID

Since June 2014 I have been requesting a refund of a deposit paid to cover international roaming. I can not remember how many times I have had to explain the issue and was told 6 months later the refund had been passed for payment in December .. no fund has been paid - what a pain to deal with such inefficiency - I once have had a call from PR ?? but what a waste of time all this sweet talk is worth NOTHING