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@Anyon If I write the abstract in Latex it appears as Latex. So I have to write it as text. Yes, unfortunately, this does not appear in the preview. Similarly, writing it in latex appears fine in preview but when it is published, it appears as Latext code.
This sounds suspicious. Respectful experts in the fields do not go for these services. The channels to get peer-reviews in academia are known since ages. I listed examples like conferences, journals, symposiums.