Hope this helps, you did not say which year it was so I took a gamble and picture is for 2002. The picture is from ETKA but tightening torques would be in ELSA and I have not loaded SEAT data in ELSA, I will have a look if I still have data files for SEAT. And it only shows it from one side but it should be symmetrical on other side I would imagine.
Part number is bracket 5 is
1M0 821 135 right side and
1M0 821 136 left side
price £5.99 each but my prices have not been updated for about half year so could be slightly off.