Here is the complete list of dealers for AMD in the UK.

AMD Alcester
Unit 25
Tything Road
Arden Forest Industial Estate
Alcester
Warwickshire
B49 6EP
AMD Amersham
Unit 14
St. Georges Industrial Estate
White Lion Rd
Amersham
Buckinghamshire
HP7 9JQ
AMD Essex
Unit 6
Cliffside Trade Park
Motherwell Way
West Thurrock
Essex
RM20 3LE
AMD Leeds
Unit 6 Evans Business Centre
Monckton Road Industrial Estate
Wakefield
WF2 7AS
AMD Silverstone
Unit 6
Silverstone Circuit
Northants
NN12 8TN
Complete list of details can be found "here" on the AMD site
AMD Woking
Unit 2
Monument Way
West Industrial Estate
Woking
Surrey
GU21 5EN
AMD Ireland
131 Liminary Road
Kells
Co. Antrim
BT42 3HZ