yeah interesting conundrum, while Damian is correct, and in theory there is a laid down procedure for users of calor gas in practice it is not that simple, I say this by way of experience, my first bottle was hired when we got the first van back in the 1970's and the second, came by the way of a friend who no longer used it, both bottles, were changed on a regular basis, right up to selling the van, at the time one was full one was empty, like many others the full one went with the van so therefore must have been sold illegally as it was included in the van purchase, but also like everybody else I was never asked for the agreement when changing bottles, so assume the new van owner would do the same.
the second one being empty, was harder to dispose of at first I popped down to the local calor agent to hand it back, no can do, he would not accept it, because for the first time in 40 years wanted the original agreement so he could cancel it, and because I no longer had one it wasn't part of the supply chain. [new for old] and as I did not want a replacement it could not be sent back as all his stock was sale or return so he could not handle spare bottles, he suggested I contact calor direct, who would handle the return, after three weeks of trying to get an answer from calor I gave up and took it to the recycling centre, who took it without question, no idea what happened to the cylinder after that and if calor ever got it back either way I don't care.
while it may be true that calor own all the cylinders and you only buy the contents their logistics is a shambles, no wonder they had no idea how many faulty lite bottles were affected or where they were during the recall. my advice is just take them for recycling. and let calor worry about getting them back.
the second one being empty, was harder to dispose of at first I popped down to the local calor agent to hand it back, no can do, he would not accept it, because for the first time in 40 years wanted the original agreement so he could cancel it, and because I no longer had one it wasn't part of the supply chain. [new for old] and as I did not want a replacement it could not be sent back as all his stock was sale or return so he could not handle spare bottles, he suggested I contact calor direct, who would handle the return, after three weeks of trying to get an answer from calor I gave up and took it to the recycling centre, who took it without question, no idea what happened to the cylinder after that and if calor ever got it back either way I don't care.
while it may be true that calor own all the cylinders and you only buy the contents their logistics is a shambles, no wonder they had no idea how many faulty lite bottles were affected or where they were during the recall. my advice is just take them for recycling. and let calor worry about getting them back.