For the first time out of many hundreds of purchases I’ve had to raise a dispute with Gameflip about a purchase i made…It’s now been 5 days and I’ve heard nothing
Mine is 10 days already - no updates 
Hello everyone,
Sorry for the wait and inconvenience.
The time a dispute takes to complete depends on the case and how fast proof is provided by each one of the sides when the Support Team requests proof.
So each case is different and the time will vary.
Godspeed! 