Incorrect line received

What is Bovada’s policy on placing a bet at one advertised line and being given a completely different line? I bet Jannick Sinner -4.5 games and the bet I was given was Sinner -5.5 games (Sinner won by 5). I took a screenshot showing the difference between what I clicked and what I received. The bet was placed as soon as Sinner won the first set so it wasn’t a stale line. Its a very tiny bet so not a big deal but do I have a valid complaint?

Thanks

@DakLamar It is not uncommon for lines to change rapidly when betting on a live match.

but it did not change in my betting slip. if the line changed in my favor I bet the wager would not have just given me a better line. It would have told me to place the bet again