Hi There,
We will transfer your whole data from your old VPS to your New Server, including your customer accounts and their websites emails etc. they will not be interrupted during this process and you can just point their DNS once the transfer complete.
You can contact us on Skype : ukmatlidigitals
For valid reference / CUSTOMER Review and Feedbacks please check our Profile : https://www.freelancer.com/u/matlidigital.html
let me know if you are interested
Best regards
Matli Digital