Double charges on London Transport

What is happening with curve? I’m using curve on Google pay linked with my HSBC debit and they are charging me double, looks like two separate charges. Day cap in my case is £8.50 so I’m getting 2 transactions for £8.50 both curve. But today I didn’t use curve but linked Google with my credit card, I didn’t use curve card but on my bank account appered travel charge using curve!!!