Good morning @bushi_bushi , sorry you're missing messages. What phone are you using and do you use a 3rd party messaging app? Are you receiving text messages from other numbers or just not from one number? Do you perhaps have data turned off? If you could give us a bit more information on this, we may be able to help you find the issue.
One more question, have you called technical support (611 from your phone) for assistance? I'm confident that there is a solution to this. Take care