The system is deeply flawed, but a solution isn't obvious to me.
I have been reporting deliberate sub minimum bets to the integrity team for years but they do not have a solution or they would already have implemented it.
There is also an issue with legal but invisible bets because of exchange rate fluctuations ie. bets in a currency where the minimum bet equates to less than 2 pounds. They don't have a solution for this either but don't seem to care.
They should just make everything legal and transparent, but then they create the problem of bet spamming ie. 100 bets of 1 penny at the front of every queue.
There is no solution. Just get used to warnings when they can be bothered to try and enforce what they simply don't have the resources to properly police.

problem not solved, but problem ameliorated.

Early this year I was matched for 10p @ 880 in a none established market.

Potential profit, before laying off, £87.90.

It came as no great surprise that the bet was reversed within 20 minutes.

Good one