Keep in mind that you will need to work quickly in order to ensure that you don’t run out of time before the files are lost to oblivion forever. If you take your own sweet time in contacting the support team of the hosting company, you might as well bid goodbye to your data.
Obviously, if you have any outstanding payments you will be required to pay it up at this point. Further, if the hosting company still has your data stored somewhere, then you will need to pay an additional fee for them to search and locate the files. After all these steps, they might give you access to the files.
Remember that a hosting company is certainly not obligated to retrieve your data. If you have been a good customer, they might be willing to work with you in order to retrieve the data. Else they can simply not be bothered to do the extra work unnecessarily and I don’t blame them either.It can be heart-breaking to lose all your hard work just because of your laxity. The onus is on you, not on the hosting company; so the wise thing to do would be to compulsorily take regular backups of your data. You never know when they will come in handy.
On the other hand, let’s say that you do want to continue hosting your own website and it was simply a matter of forgetfulness which made you overlook the expiry date. In most cases, your account would probably just be in suspended mode and not really terminated yet by the hosting company.
Then you could go ahead and renew your account with the company. If you do so within the stipulated time, chances are that your data will be safe and your website along with all your old data will be up and running soon.