What recourse does a player have when a referee makes a scoring mistake in snooker?

Today in the World Championships, the referee, Jan Verhaas, made a scoring mistake in the eighth game of the quarterfinal match between Neil Robertson and Kyren Wilson. The error occurred in Wilson’s second visit to the table after breaking off. This is the way it went:

red     referee: one
pink    referee: seven
red     referee: eight
blue    referee: thirteen
red     referee: fourteen
black   referee: nineteen
red     referee: twenty
black   referee: twenty-seven
(miss)  referee: Kyren Wilson, twenty-seven

So, as you can read in the above transcript, the referee errored on the sixth ball of the second visit. He scored a black for five points, as though it was blue, instead of for seven points. This led to the overall point total for visit being two points less than it should have been. Although Wilson did indeed win the frame, at one point it could have made a difference in the outcome if Robertson had played perfectly.

So, in this situation, what are the player’s options when a referee makes an error like this? Is it encumbent on the player to notice the error immediately and petition for it to be corrected, or can it be corrected later? So, for example, once the total for the frame had been called, was it too late to fix it?