Ebay app technical problems - previously used and worked perfectly since launched

Now since Sunday all listings are completely missing their blue bars for 'submit bid' or 'buy now'

They are there on the desktop website only

Customers who use the app to buy have contacted me to ask why there is no facility to purchase my listings !

Constant attempts to contact ebay app technical people - so far nothing has been rectified since Sunday

Have tried everything - re-listed items - cleared cache cookies - restarted phone - deleted and re-downloaded ebay app

Nothing works - the problem just persists

Anyone else out there had this problem ?