Identify Service Agreement ID?

Hello,

Server hardware, vSphere products and support were purchased via a reseller in 2010/2011. We are now trying to both renew the support (via another reseller) and also raise a support call with HP but it seems we can't do that without a Service Agreement ID.

We have no record fo the SAID and the reseller we purchased from no longer exists.

Can someone please advise who I can contact/speak to, to identify the SAID for the support comtracts we have paid for?

Thanks,

Laurence Barker