Hello @user70203 ,
SMS contacts can still be re-imported. If you'd prefer, you're welcome to call in for live troubleshooting of your issue.
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I am having the same problem as well. I contacted customer support late last week who reviewed while having control of my computer and they had the same problem. The rep put me on hold for a while, came back on and said it was a known issue and I would received an email when it was corrected. So far nothing from Constant Contact on resolving this "known" issue.
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