Question Author
Hi all..........well, seems you were all right and as promised here is the answer I got from..........well, I won't say who but it
wasn't a market stall in my home town that's for sure...;-) Still, it might just help sombody in the future.
"We have confirmed with our consumer protection lawyer that we are able
to cover an existing price sticker with the new correct price sticker.
This kind of practice is fine as long as the incorrect price is
completely covered and where possible we use permanent stickers that are
difficult to peel off. I hope this clarifies things for you."
...........regards to all who answered................commoner.