This is just too precious ...
I had put a hair item in the basket ... instead of a price it read 0.00 ... oh, quick to see if that would fly through, no way ;-)
So I removed it to see if it would repeat but no, it now reads the proper price ... but in the meantime when there was 'nothing' in the shopping basket, I noticed a price showing ... so here's one for the record.
[n.b. nothing needs to be done; it did fix itself up to read properly when next the shopping cart was used]