How to stop IPS insurance?

My IPS insurance will expire this 1st Sep, after that,I want to stop using IPS, do I have to inform them in advanced?or will it stop automatically as long as I don not sign extension paper with IPS?

Anybody knows this?Thanks a lot.

write them a letter to say u wanna stop~ ,,,

if you didn't subscribe for more than one year, it will stop automatically~,,but better call them to reassure~

你不交钱不就结束了

ok,i will call them tomorrow to make sure,thanks:)