Amazon poor customer service worst if ever experienced

It bad how a place like Amazon as so bad customer service the refund me for a item I bought the 20 December and stiil nothing its been 1 month and I still haven't received my money back. Link address https://www.amazon.com/gp/r.html?C=1GDZONJ9HF37K&K=DN3G067YWZG1&M=urn:rtn:msg:***e3e5f1a74f27a60f83b54910p0na&R=3ERV3O7076RL2&T=C&U=https%3A%2F%2Fwww.amazon.com%2Fgp%2Fcss%2Forder-details%3ForderId%3D***%26ref_%3Dpe_***_TE_simp_od&H=D0IEQXNE75HI29VGUHNSAEZJXQUA&ref_=pe_***_TE_simp_od