Any Idea What This Is All About

[andy]

On eBay, it would be a dealer

Here is Globalsim's info - you can see that part of the message you have is directly quoted
http://www.globalsim.net/DE/index.php
Google translation

they don't seem to have an English version of the page at the moment - when I altered the DE to en, it switched back

Dieses Angebot ist bis zum 02. Juni 2006 befristet. Bitte teilen Sie uns mit, ob Sie unser Angebot annehmen und sofort von den Vorz?gen der neuen GlobalSim Holiday Mobile-Card profitieren m?chten.

Senden Sie uns, Ihre RIIING SIM Karte gleich mit dem Vermerk ?Umtausch gegen GlobalSim Holiday Mobile-Card?, versehen mit Ihrer Lieferadresse, zur?ck.

the offer (das Angebot) looks like ?14.95 with ?10 value, discounted from ?29.95, when you send them back the Riiing SIM - offer valid until 2nd June

the product Holiday is mentioned, but the Google translation shows at the bottom [Karte = map/card]

Its SIM map is delivered in principle in the Holiday Prepaid tariff.
After receipt of the map you can change your tariff over to Business Postpaid