im trying to post a add for porting nitro motors but i need to upgrade witch upgrade do i use

You will need to upgrade to RC Trading Plus - Vendor, or higher, to post a ProSeller ad.

Please note that at this time, we cannot process credit cards so please keep that in mind when you begin posting your ProSeller ads.

ok that was my issue i was trying to use my debit card and it whould not let me.my paypal is under my debit and it wont let me