Robinson said: "It's bitterly disappointing, especially when you look at the way we conceded the goals and also the way the officials gave most of the crucial 'decisions to them.
"But there's also the defending, you've got to react properly and do the right things and we didn't. When things go against us we don't defend and do the right things.
"We've apologised to the referees about some of the things we've said to them in public but it's hard to keep your tempers down.
"Paul just asked 'can you not see that?' to the fourth official. I feel sorry for the referee because it's impossible to get everything right."
Source: Team Talk