The same thing happened in 2011/12 except that time we took action and rescued the situation.
In that season, the first bad decision was probably at Fulham, when Dzeko was fouled in the build up to their equaliser but the foul wasn't given and we ended up dropping two points. The next (although it didn't affect the final result) was the failure to award what looked like a stonewall penalty at Old Trafford for a foul on Richards when we were 1-0 up. The next really bad decision was at Chelsea where, already 1-0 up, the referee turned down a clear penalty for a foul on Silva. He then gives a very soft penalty to Chelsea late on, to add insult to injury. The referee was Clattenburg in all three games.
After that, people in Abu Dhabi were told by someone who specialises in monitoring such things that there was a clear bias against us that could be correlated to suspicious betting patterns. So they paid this person to prepare a report with his evidence, which was passed to the authorities. As a result, Peter Walton disappeared to the USA mid-season and Lee Mason was withdrawn at short notice from a couple of games involving us, at our request. Just after this, Mike Riley made his famous presentation to Points Of Blue, where he told us how great the referees were, how they were totally unbiased (despite it being pointed out to him that one high-profile game had a ref where there was a clear conflict of interest). He also said Mason had been withdrawn due to an illness in his family but he was fourth official in London the same weekend, when his family is in Bolton. That was a lie. Mason was withdrawn because we objected.
The same person did something similar (although I don't know who for) back in 2007/8 after a referee had given a staggeringly one-sided performance in a Merseyside Derby in October 2007. The referee was Clattenburg and later that season he was suspended, then sacked and finally reinstated on appeal. But a couple of other referees were removed from front-line duties at the end of the 2008/9 season, namely Rob Styles & Mike Riley. Both were well short of the normal retirement age. One of Styles (many) controversial decisions came at Old Trafford, when Ronaldo was fairly tackled and he gave a penalty, even though no rag player appealed. Riley was the ref in the infamous Chelsea v Liverpool game when he wrongly sent off Frank Lampard but let Gerrard get away wit h two potential red card offences then failed to punish a deliberate flying kick on Benayoun by Bosingwa late on.
It's happening again this season but the club don't seem to have reacted in the same way, which is puzzling. Possibly because the person who helped us out last time is now doing the same for Arsenal. And how are they doing this season?