I am a customer, yet I'm the one being threatened for their poor service.

For the first time on Saturday, I requested an Uber ride. Well, the first trip going to my event went well. Then in the afternoon, I requested a ride again going home. I forgot my parcel in the car, then I went back to the Uber app to try and find the driver. I got questions to choose from then they transferred me to the driver and I told him that I forgot my parcel. He then said he's far away from my place but I must take his numbers so that we can arrange a time for him to bring back my parcel. The next day I phoned him almost the whole day trying to find out what time he'll come but gave me all sorts of excuses then eventually he brought it on Monday evening. He said I must pay for the trip or petrol because he had to come to my place to bring my parcel. I asked him if that is the company's rule, he said not really then I didn't pay. Yesterday the lady from their call center phoned me telling me that the driver said I have contacted him (harassing him) after the trip which is not allowed and if I do that next time they will terminate my account.

I mean, who was in the wrong here, me or the driver because he's the one who gave me his number and now he says I was harassing him. Then Uber threatens to terminate my account, who wants business me or them?