BuyVM.net VPS account is suspended

Aiba Blog has been inaccessible these two days. After asking BuyVM.net’s customer service, they said that one of the VPSs has expired.
This was my oversight. The expired VPS BuyVM sent me an email reminding me to renew it, but I ignored it, thinking that it would be the same as the virtual host and would be deleted directly after it expired.
Unexpectedly, the VPS where my AiBa blog was hosted with the same account was also shut down.
Then, I sent a message, and BuyVM replied: as long as one VPS under the same account is in arrears, the others will also be suspended .
Then I sent a message to cancel the expired VPS, but I had to pay the expiration fee afterwards, mine was $2.7.
The money is little, but it makes people depressed!
Suggestions for those who have BuyVM VPS: If you do not plan to renew the VPS under the same account, cancel it as soon as it expires .