MTD - submission confirmation

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hi, 

we submitted our 1st return using sage to comply with MTD a week ago. message on the screen showed it was successful. i have a print out from sage with "correlation ID assigned to this vat return by hmrc" and even a print screen from sage with congratulations message. to my surprise, when i went to vat module a week later to submit payment details, it showed that the submission was pending. i tried to follow the steps listed on sage help page: https://ask.sage.co.uk/scripts/ask.cfg/php.exe/enduser/std_adp.php?p_faqid=44966 . unfortunately i'm unable to do any of it. i contacted support on online chat, but they weren't of much help and even told me i need to re-submit it again! in th end i contacted hmrc and they confirmed receipt. is this a common problem? how will i know in the future a submission was successful? why the submission confirmation button is not available and "SageMTDBridge" folder does not exist?