Hi guys, need a little help here in submitting a cover letter for online application purposes.

Since the cover letter is uploaded to the 3rd party system of the organisation, do we need to include an address? And if its an MNC, which address do I need to insert if the recruitment process is somewhat globalised? The HQ address?

And since the system would already have my contact details and address, do I still need to include it in the cover letter?