sold greyhound books $1000 winner txt me with ph No all I get is leave a msg tried 10 times what next

[accoj]

Hi I sold a set of greyhound stud books @$1750 or offer

winning bid @ $1000 was accepted

he sent me a message with a phone number

but when I ring it says leave a message

Ive sent him an ebay message and rang him about ten times with no response what do I do next

I tried to open a non payment thingy

but I think I have to wait 30 days

thanks John