Poor service

Last night I sent an inbox Twitter message to DSTV regards my lost remote and decoder that does not keep the My Channels and keep putting me back to all channels when I set it with another remote but the moment I change channels I am back on all channels. I have a similar decoder at my other home that does not have this problem. So I sent this info through to DSTV who returned by answering me in short "@Sylvester Hi please buy a new remote. Then I responded that I am using one of my other remotes they answered that I keep it on All Channels. My question is what is the purpose of having a My Channels it is more convenient to use this option you can only see that channels that you pay for. Multichoice's reply is arrogant and of no assistance Please assist