If you bought a condom, and it was to short. Would you go back to the shop and ask for a refund becuase its "not fit for purpose". Bollox it is fit for purpose just not for you. There are plenty of items that taken out of their packaging and used are not returnable.
Why did the OP not just wrap the tape without removing the sticking taping bit. Realise its to short and just send it back? I think its more a case that because it has been stuck to the bars it becomes used.
The tape would fit some bars just not the majority.
"not fit for purpose" is a phrase that is thrown about to much these days.
At the end of the day i really don't care and wonder why i bother typing some times. i just kind of have too. I do research into stuff I buy and where i buy them from.