S80 lighter
 

Hi to all, I am new to this forum. I own a volvo s80 2000 model.
I bought this car used and I tried charging my phone from the front lighter socket, I face two problems, the socket pops my charger out for some reason and the second one it does not charge (the charger's light bulb does not even turn on). If I press the lighter it does get warm though so there is power there.
On the rear lighter socket the charger stays fine and the charger lights up and charges my phone.

Does anybody know or experienced something like this? Is this a problem with the lighter port and needs to be replaced?
I found a third party lighter socket of ebay really cheap. (eBay item number:181441221619)

Anyone to advice?