mot tests

It has passed so no problems there. The advisory is the opinion of the person on the spot, who tested the vehicle and signed it off as roadworthy, and will be held responsible for the condition should anything untoward happen. He (or she - sorry ladies) will advise on anything which could be a problem in the near future to prove they did not miss it, because we live in a society where someone has to be to blame when things go wrong and testers often find themselves in the gunsights. If they think it serious enough they will mark it as dangerous to drive IN HIS OR HER OPINION. In this case it is an advisory not a fail because the prop shaft is not a testable item. You may want to consider though, that the tester is an experienced technician and knows what they are talking about, so although you do not LEGALLY have to have it repaired you might want to have your own tech have a look at that.

Took me so long to type it out I was worried that somebody else would get there first.

thank you for replying I will get it checked out by somebody else but in the mean time will I be ok to drive it

One finger Typers rule

Probably a worn out universal joint. It might last a little longer, it might not. Difficult to say for anyone who hasn't had the benefit of actually looking at it, but it will eventually go clunk bang broke and leave you stranded.

The OP is referring to the propshaft between front axle and transfer box, it runs under the passenger seat area more or less making it a near side propshaft compared to the one from gearbox to back axle.