Linkshe Defective item Internet

 I ordered a jumpsuit Navy Blue High Waist Half Sleeve Belted Jumpsuit in a size large. According to the size chart per US sizing the item was a size 12-14 which would give me more than enough room. I actually wear a size 10 soI bought it bigger just in case it ran small. When the item finally arrived I could not zip the item nor could I pull the item up my arms would not go past my wrist? Also I ordered the item on 12/17/16 I did not recieve it until 1/6/17. That is way longer than 6-10days as advertised on the site!