Poor quality sweatshirt

Our family have 5 Springbok jerseys between us and we are very happy with the quality However I received a navy blue sweatshirt as a gift about 4 months ago. After about 4 washes the sweater has lost its shape completely Old School have given me a R400 voucher - very kindly - but not enough to replace the sweater and I am reluctant to throw good money after bad …