10 Credit consumed for something

I bought credits today and something take 10 credits from two months ago

What is this?

Status,Date (GMT+2),Count,Model,Card,Version
INIT,2018-05-14 13:29:09,+30,"","",""
OK,2018-05-16 12:32:01,-10,G935T_G935T,xxxxxxxx,31.5.1
OK,2018-07-25 19:50:20,-5,J510FN_J510FN,xxxxxxxx,33.2
Ballance,"",15,"","",""