I put the exact same bet on again and it landed and yet again £90 showed up in my account.
The bet landed on one of my columns and I should have received 45 x 3, but instead I just had £90. Given these bets there is a 1 in 3 chance that it lands on one of the columns, and 2 in 3 chance with my bet. WoThe chips were showing on the table and the bets were placed.