I ordered my new SIM on the basis of an 'upgrade from' date of my current provider - which turns out isn't the same as my contract end date (my mistake).Obviously, I don't want to pay for two concurrent services, so how long do I have to activate the...
I ordered a SIM with a plan because I thought (wrongly) my last payment on my current contract had just been made, whereas there's another one due next month.
