The interlock driveway was re-laid as well as the patio. I have some blocks which are lifting, perhaps 20 stones. so relatively minor but I have e-mailed 3 times and phoned once but no response.
it was covered by a 2 year warranty but has now expired due to non response. It is a fix that could be handled in an hour or two .
Optimistically I am hoping that they are just too busy to respond, or the message was mis laid, but either way disappointed , and hope they will fix.