Worst service lately

I use to be purchase some stuff with them for couple years. But, recently their service went to wrong way, the bad way. My last 3 orders with them have problems. The first one, although they gave me tracking number, and they said it's Fe*ex, but after a month, never arrived. The tracking number NEVER gets updated and the package going nowhere. I ask for refund, they do the refund. The second order, initially order from their CN warehouse, using specific courier service, but they CAN'T fulfill the offer. They offer to change into slow and cheaper one, called air parcel registered. I refused, and asked for refund. They agree and refund my money. The third order, same with the previous order, they CAN'T fulfill the offer again, change the slow and cheaper air parcel registered courier. They gave me tracking number, which after more than 45 days, never gets update and whereabouts is unclear. The package, from information taken from the tracking number track, shown it's sent from Switzerland. From what I know the country locate at the EU region. Their shipping and refund polices, as written at: https://sea.banggood.com/Popular-questions_hl13_at321 clearly stated, that my order already beyond the time according the refund policies. Funny thing is they refused and asked me to wait for 60 days. They said that my order was from CN warehouse. What ever country origin of the package is, clearly recorded by Swiss Post tracking system, they said: it's from China warehouse. And today, I know the customer service NEVER get attention of every word sent to them in many emails. They don't read and properly understand any situation as a FACT. I open dispute in Paypal and escalate this order, as I know I won't get solution from them. I won't make the purchase from them again with this BAD services. If they not fix this service, I won't came to them anymore. This is really disappointment. 3 orders gone with the wind. Wasting my precious time, 3 months, and get nothing.