|If the Laptop is still under warranty contact MFG' s Support.|
If not the fix is different for different Laptops.
Post the MFG & model# of your Laptop. More than likely the AC plug is separated from it's mounting inside the Laptop.
Some Laptops have this connection directly on the Mothrboard, which requires either Repair or Replacement of the plug. Soldering involved, possibly the Motherboard if un repairable.
Some newer Laptops have a separate, replaceable mini Printed Circuit Board that can be replaced without disturbing the Motherboard.
HP is one brand that uses the Mini PCB. I don't know if it's all models but I have one for a dv6500.
There is nothing to learn from someone who already agrees with you.