Billing

[Michae19]

Two days ago I was billed the regular amount for a month’s premium membership; learning of this I re-registered my student discount, and was immediately billed an additional £4.99.

Does this payment indicate that I’ve just paid for an additional month of Premium, or does it invalidate the £9.99 I’ve just been billed? And, if the latter, am I entitled to any form of refund on the prior payment, which in this scenario would have given me premium membership for all of two days?

Thanks