Terrible service from Mayday

About 3 or more months our car had a flat battery so we phoned Mayday.  After an hour we phoned again and there was no record of the first call.  It then took them approximately another 3 hours to arrive.  The technician told us that he had only got the call about 30 minutes previously!

Today we had a flat tyre so called Mayday again and was told that someone would contact us back within 30 minutes.  Over and hour later we got a call telling us that it would be another 40 minutes before someone would call around.  No mention of compensation either.

Previously we have had good service but this seems to have gone to pot.  What is happening with Mayday?