Hello Rosie :)
Welcome to the forums! I will try my best to address your concerns, kindly refer to my answers below -
1) I dont have blogshop to begin with. Do you think its better for me to start with something as free as blogshop or straightway using sellhoo's online store services?
If this is your first time to sell online you might consider selling through online marketplaces such as ebay before investing on your own webstore just so you get the feel of online selling!
2) I do not have any customer base. If I were to open the online store using sellhoo service, what the system will do to attract the traffic for my store?. What should I do in your opinion?.
Everyone starts out this way - zero customerbase but millions of potential customers to attract! I think your find the tips in the following links helpful -
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3) How do I accept credit card for my business or other payments? I only have paypal account that link to my debit card. I live in Malaysia.
You can accept credit card payments through Link hidden: Login to view. I found this Link hidden: Login to view offering a step-by-step guide on how you can accept credit card payments through your PayPal account.
Hope this helps you off to a good start!
The best of luck to you and your upcoming business :)