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Its a SCAM.
It would not be paypal customer services that you called it would be a FAKE number pretending to be paypal customer services.
The number shows up when you use 'google' to find paypals number.
The only way to get the REAL paypal customer services number is via help / contact bottom left of paypal pages and scrolling down past the FAQ to the 'call us' option to phone them....although as you said difficult at the moment due to covid.
If you think about it why would paypal ask you to open another companies account for any paypal issues?