As a frequent visitor to Singapore, I look forward to attending as many events as possible during my stay.

Singapore has so much on offer and, until my latest visit, it was relatively easy to book tickets online using my credit card.

But now, I find myself at the mercy of the one-time password (OTP), which is sent to the principal credit card holder's mobile phone.

I can see that it provides another level of security for local residents, but it is almost impossible to use if one is a visitor to Singapore.

I've been unable to book tickets for any event by credit card, and the more popular ones are often booked out in advance.

I have never encountered this OTP request in other parts of the world. It seems quite unfair to enforce a system that disadvantages tourists who want to experience so much of what Singapore has to offer.

Booking online is now a way of life and is usually very convenient.

I hope the authorities can make it easier for tourists to book tickets online, without the OTP, so that we can enjoy everything that Singapore has to offer. After all, an $11 ticket for an exhibition is hardly a security risk.

Brenda Scofield (Ms)

Hong Kong