If you mean you want to terminate your current membership so that the newly purchased one starts immediately then you cannot do that. Once a membership has started then you have to wait until the current membership has run its full monthly course and expires before the new membership will kick in. If you have used up allowances on the current membership and need more until it expires then you can buy add-ons:
Add-ons
If you mean that you have a stacked membership that has not started yet and you want to change it or get a refund then you will have to contact 48 support and see if they can do anything for you:
Guide on how to get help
Hope this helps.
