DON'T USE THIS SHADY A** COMPANY EVER!!!!!!

Okay first off i have a 2011 macbook air and the internet stopped working on it somehow, like i had the wifi connected but it wouldn't let me get on the internet so first i looked around the internet on my phone to see if i could fix it myself. I came across a firewall that i didnt even know i had and thank God i enabled it before i called mytechhelp so since i couldnt fix it i googled apple tech support phone number on my phone and that was the first thing to come up. I saw it said apple tech support so i thiught it was legit. I called and it seemed pretty authentic at first but f no it isnt. So i talked to a lady (and she seemed to be from india or something and i could hear a lot of people and stuff in the background) i told her my problem and the reason why i felt hope was because she got my internet working again. So i was like yay so she told me i had a virus on my mac (which is very dumb becauseacs RARELY get viruses and i didnt download anything) she said she could fix it permanently for a fee of $119 at first all i heard was $19 so i was thinking okay that isnt bad but i realized it was more. Me being dumb thinking this was legit i gave her my debit card number, serial number, and address ugh *facepalm* i blame myself honestly for falling for this sketchy sht my card was declined because i dont have that kind of money at the time and she was very aggressive about getting the money she even offered to call my bank so i told her to call me later and she offered some shady $100 gift card and it was online only and they took out $9.00 out my account so she called back eventually and talked to my dad cuz im only 17 and she was just BSing about the situation my dad said to not continue the service. He called the bank immediately to get that $9.00 reversed and im glad my card got declined so i wasnt out of any serious money and im glad i had my firewall up so they couldnt hack my lap top i just wasted a whole day dealing with this bullsht now im waiting for my mom to get home to see if they didnt damage my $1000 computer but i hope by just getting the serial number they cant do anything. This has taught me a valuable lesson do not effing deal with them their full of sht!!!!