Cadac Faulty Gas Bottle

Filling my 7 kg Cadac Gas bottle at my local hardware shop found that bottle is leaking gas at the tap. After some heavy sighs , as the bottle is not even 2 years old and hasn't been filled more than 5 times , the bottle was sent , with gas leaking to Cadac. I was then informed that the problem is a default with Cadac. So expecting the bottle to be changed , I received it tonight, filled , however repaired with thread tape. *** . Cadac. A gas bottle repaired with thread tape. It is impossible to reach Cadac by telephone and the local Rep dodges me at the local hardware shop. Hopefully Cadac will read this complaint before I have to take legal action . I want the bottle replaced.