Wednesday I got a call from the shop that my DA* 16-50 was back from the Pentax service centre and that I could pick it up. So I jumped in the car to drive some 100 ~ 120 KM to the shop but there was a big traffic jam, so I called them from the car and told them that I was under way from Amsterdam to them but I was in a traffic jam and I was going to arrive later than the shop opening times. I asked them if they could wait for me because this is a process which is playing already for nearly a half year and I am done with waiting, so they told me that they would wait for me.
Well I arrived at the shop....and it was closed gggrrrr

So I mailed them with the costs I made to drive to them and the hour costs.
The next day I tried it again but was there now just for lunch time at the shop, I came there and the shop was full of people. I asked if someone could help me with exchanging my loan lens with my own lens, they guy behind the desk was going to the back of the store to collect my lens. After he got back and gave me my own lens I tried it a several times with zooming out and zooming in, it did NOT stuck anymore

BUT it was squeaking a LOT so it was making funny noises which was not funny for me...the guy behind the desk told me that is was lubricant and that it was going to be away after a couple of days of use, well that was okay for me for thát moment.
So I put the lens on my K20D and went outside to take some pictures to see if it focused right, and surprise surprise it didn't



.
At F2.8 it was just too soft to be usable and it focused not right and I couldn't fix it from the body at that point.
I told the guy behind the desk that I was not very happy with this service and that I was being tired with this stuff and that it had to solved right away.
The guy behind the desk said that he didn't see any flaws...so I told him that I wanted to speak his boss to solve this. He told me to go to the Headquarters of the shop a couple of KM's away.
So I did and I showed them there my pictures and they were fully agreeing that this lens was not right and not sharp enough for such expensive lens, especially because this very lens was good sharp at F2.8 before sending it away to the Pentax repair centre.
After some debate I told them that I wanted my money back and that I was done with this Pentax repair centre. They made a letter and took my lens and send them to the Pentax service centre with the letter which stated that they wanted a rebate(I think this is the right word, I mean they want the money back from Pentax for the lens) so I can get my money back.
After all, I don't have any DA* 16-50 lens any more. If I get my money back I am not sure if I am going to buy a new DA* 16-50 after these experiences.
Maybe I am going to buy it again, but then at a shop more nearby and where they have a couple in stock to try.