A couple of weeks ago, I reported an issue with pop over

A couple of weeks ago, I reported an issue with pop over plugin and using jet pack contact form plugin, rather than an autoresponder. After a few exchanges, it was sorted so the form displayed, but the submission was still to be fixed. Despite 2 requests for update, nothing. I appreciate it might take a while, or you may choose not to do this support, but please let me know what is a reasonable time between updates?