Calor Gas Swap

Looks like Calor are at it once more:

I've just tried to change a 3.9Kg for a 6kg but apparently

• 3.9Kg is group 1

        and

• 6Kg is group 2

You can’t swap between the groups hmmmmm

I had this trouble a couple of years ago but last year I swapped no trouble at all.

Anyone near Coventry, Rugby, Daventry   J1 - J2 M6 or J19-20 M1,  A14  with a 6Kg wanting to trade down to a 3.9Kg but can’t