Your main competitor is facing delivery problems (out of stock, ..), his customers (incl. loyal ones) came to you. How will you treat these customers?

D) Treat them special and try to win them for ever

That's the best campaigning advertisement you can have.

B   Treat them normal  

i dont think its ethical to increase price because they might buy fr om you once but never again.

Treat them special is also  unethical since you are being unfair to your own  loyal customers to win over  a competitors customers. 

I would opt for 'D' for reasons as detailed by you.

>>>>>>>> Well ..... My answer will be option D) Treat them special and try to win them for ever.... thanks.

B) Treat them as normal customers

Otherwise it will give scope for unhealthy competition at a later stage.  It wont be good to take privilege of an unsolicited situation........we may also face a similar situations and better to remember windfalls are not permanent.  Irritating a competitor means a lot more hurdles at a future date....do not invite a trouble unnecessarily..

My answer favorite

D) Treat them special and try to win them for ever

Treat them special and try to win them for ever

Thanks for the invite , My option would be b) Treat them as normal customers (Regulars) , But it is in business interest that the service shall always strive to provide best to every customer no matter they are new or from competitors and that is the best way to retain business and capture the market . 

Treat them as normal customers

Option "D"

Treat them special after all they are customers

Always try to win them through your dealings, customer services, product, quality, price, and business relationship.

They are customers and will be treated as usual ones. What ever efforts we put into our product  - is for our CUSTOMERS. Our business exists because of CUSTOMERS.