merging licenses for AVAST Internet Security?

Hello- I contacted Avast Support about merging my two licenses. I re-upped thinking the 2 months I have left on my current license would carry over and it did not. They offered to merge the two but I have not been able to get a reply to my emails. Is this not possible to do? Just don’t want to lose those 50 some days if I don’t have to. Thanks in advance!

Maybe the question should be addressed to
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