Thanks for the video. That incident was hilarious!
Well, of course, we don't know the reasons behind this, or what the negotiations involved, so can only speculate. I'd like to think it was because HS is, like so many other companies, feeling the financial pinch, but the fact is that they have continued or renewed their other sporting contracts - cycling (Sir Chris Hoy in particular), golf, rugby and athletics, as well as with Wimbledon, Queens, the London WTF and the GB Davis Cup team.
It gives me no pleasure to say it, but it does beg the question as to how far Andy's poor performances last year, plus his on-court behaviour, may have affected this decision.
As for the RBS, whose sponsorship deals are understandably being heavily scrutinized, according to the Daily Mail of 4 Feb - "Talks are at an advanced stage about RBS regaining one of the two available spaces on Murray's shirt as part of a much wider endorsement that will see him front a major community tennis initiative."