Hello I had booked a PCR test through Doctolib at Covid-19 screening center- Sante plus- Nanterre on 21st July 2021 at 14:40 as I had a flight the next day which is 1st august 2021. I reached the address given 20 mins before but the screening center is nowhere to be found and I even asked the SNCF and RATP staff at the station and none of them knew about it. Due to this misinformation about the center I had to cancel my flight and rebook another one which has costed me money. I expect some kind of compensation because of the trouble caused to me.