I have some packages that came very fast to Canada, with a tracking number starting by LM and ending by CN (1-2 weeks), while other starting with LL took much longer (4-6 weeks, or still not delivered). I found that ePacket tracking number is a 13-digit tracking code starting with letter "LQ/LK/LM/LN/LX/LS/AG/LW" and ending with "CN". LW and LT is the destination for United State, LX is the destination for the United Kingdom, LM is the destination for Canada. However LF and LH number still belong to China Post Register Airmail.
Recently i bought 2 items with a combinated weight of 50kg up to 70kg, the seller has given a tracking code starting with an RVXXXXXXXXXCN, i wanna know if this can be possible, because the webpage of chinapost says that RV starting code is for small package. and, how much can a chinese person pay for a (80x80x80/heights) and 50/70kg box with the cheapest(max 2month for delivery)shipping method that they have in china?.