Hi MarkV,
Thank you for your quick reply.
Followed your suggestion on both IE and Chrome - still unable to purchase.
One thing to notice, on both browsers: page is returning "500 Internal Server Error"
If it helps, the last purchase URL I have attempted:
tm.marketfeeder.co.uk/checktmorder.php?ids=4103714,27106659,27106660,27106979,27106981,27110297,27110688,27110691,27111255,27111969,27111970,27111971,27111972,778778778&lang=prt&ETag=e2fcfdd3f9183a580b41dfb957a3653e&bias=-0.00
Thank you,
Nuno