Issue is my phone is old (Iphone 7) and Google Authenticator (which is linked to the electrum wallet for 2FA purposes) has stopped working.
If you're advance user, you could try extract GA's data from your old iPhone and use SQLite reader to get 16-character secret character for 2FA. I did similar things with old rooted android phone in past.
Please help, as it's a good chunk of money we're talking about and I don't make much money from my job. This is a matter of life and death for me.
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and if that doesn't work I'll try installing using the seed.
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Some basic security reminder,
1. If you plan to use different device to access your Bitcoin, make sure it's secure.
2. Make sure you download real Electrum from it's official website.