Beautiful Faux Fur coat-Size L or XL

This is a lovely coat my son bought online for me for Christmas. Unfortunately, he thinks I am smaller than I really am, so it’s too small for me. Pit to pit is 24”, sleeve 24”, length is 48-49”. It’s white, black, grey with some brown undertones. Size tag was removed but see measurements. BONUS: This coat was professionally cleaned before Christmas and not worn since.