License upgrade mistake

Hi, I recently purchased the professional edition licence to extend my starter edition, didn’t realise I could just upgrade it any way to merge them? Even if I have to pay another £7.5 to make it an advanced?

This is a billing issue, so if you can kindly send an email to contact@cubecoders.com explaining the situation and we can sort this out for you.

Thanks for thr quick reply! Email sent