I buy license but when i use teamviewer it tell license is invalid , why

I cannot contact support team , your service is very bad

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I try to contact you every chanel , telephone , email not anything reply to me

Please contact me at [removed per Community Guidelines]

I pay for expensive application but I feel bad of your service

Thank you for contacting us on TeamViewer Community!

Can you kindly provide the invoice information and contact details via Private Message please, then we may assist further on this case.