Shipping cost Superbuy (?)

Hi repfam!

I know that the shipping cost is normally high with Superbuy but I feel like it is way too high for ~2300g. My items costs 235 yuan and the shipping with EMS to Romania is 508 yuan. Also I am waiting for 2 more t shirts, some underwear, and a sweater to arrive to the warehouse. Hope it won't increase very much the shipping costs.

I also heard that some money will be refunded from shipping when they will weight again the parcel, how much is it normally refunded?