Its a different cover. 533/534 are stone guard covers that fit over the arm the suspension spring is sitting in.
I have not fitted these yet but may do in the future. If im truthful i forgot about them
Heres the list of parts i got with current UK prices.
Part numbers with RRP Prices exc VAT
Full VW Golf Engine under tray(x1) 1K0 825 237 P Undertray £26.24
(x3) 1K0 825 951 Hex headed bolt (Combi) 80p each
Rear axle cover as fitted to VW Golf bluemotion(x1) 1K0 501 713 D Trim for Rear Axle £25.03
(x1) 1K0 501 682 Retaining bracket £1.67
(x1) N 905 483 05 Retaining bolt 47p
(x1) N 901 838 02 Retaining bolt £1.63
Rear arm covers from Audi TT(x1) 1K0 511 539 E Stone chip Guard £4.69
(x1) 1K0 511 540 C Stone Chip Guard £5.91
(x4) 8E0 825 267 A spreader rivet 10p each
(x2) 1K0 609 734 C brake cable clamp 76p each
(x2) N 102 854 02 Bolt 18p each