Hello Seline!
This is something "normal" and is easily repairable. But you will need a micro-welding technician. If it's just the connector, as you say, any technician with some knowledge in this topic should change it and not charge much.
The only difficulty of these connectors is that they are plastic and it is very easy to deform them, without more problems than this one.
I suggest you take a picture of the damaged connector if you still have the iPhone open and go to a technician in your area to give you a quote.
Luck!
Esto es algo "normal" y es facilmente reparable. Pero necesitara un tecnico de microsoldadura. Si es solo el conector, como dices, cualquier tecnico con algo de conocimiento en este tema deberia cambiarselo y no cobrarle mucho.
La unica dificultad de estos conectores es que son de plastico y es muy facil deformarlos, sin mas problemas que este.
Le sugiero haga una fotografia del conector dañado si aun tiene el iPhone abierto y vaya a un tecnico de su area para que le de un presupuesto.
Suerte!