My two cents:
It's a natural reaction I guess to believe that something funny is going on when such sequences come up, but to certain extent it's because the sequence is recognizable. Each sequence of spins has the same probability, it's just that we don't notice the "ordinary" sequences which contain a mix of numbers. When people choose their lotto numbers there are certain selections like 1,2,3,4,5,6,7 which are very rarely chosen, because people prefer numbers which look more "random", but if we're thinking rationally, we'll realize this makes no sense; every selection is as good as any other, unless we have evidence to believe otherwise.
The OP didn't mention whether this was at Betfair RNG or live casino?