Cancelling a trade to stop Ping Payment option when Buyer hasn't made any contact.

Hi,

How do I cancel a trade when a buyer hasn't made any attempt to reply/contact?

Trademe rules say 2 business days and I also stated in my listing quick, clear communication
or lack thereoff will result in trade being cancelled in 2 days and items relisted.

I’ve been running into a string of unfortunate luck lately where my listings seem to attract accounts with zero to minor feedback with mixed/negative reviews.

I prefer to just move on and relist the items and hopefully deal with genuine traders but with Ping payment still available, there nothing stopping them from suddenly paying.