Loading Contacts on new device (Backup related)

Iv changed to a new phone (HTC 628) since the old one (S4 Mini) crashed . SIM card remains the same across both devices

My old backed up contacts are visible on my Avast account under old phone . Both devices now show on Avast account

I need to download the Contacts onto my new phone. I tried downloading the apk as advised in an earlier post , but cant open it on the new phone .

In the absence of the Avast backup application ,which i understand is now discontinued, how can i get the old contacts onto new phone?

Please help / advise

TIA

https://forum.avast.com/index.php?board=66.0