"African" is not a language. Africa is a continent that contains 54 countries and more than 2100 completely different languages. Some estimates place the number of languages at around 3000.
If you have any quesitons about African languages, you will have to specify the language.
The most prominent languages spoken in Africa are:
Afrikaans
Amharic
Arabic
English
French
Fula
Hausa
Igbo
Oroma
Somali
Swahili
Yoruba
Zulu
nai goss
Dankie
To say "Thank you" it is: "Misotra". To say "Thank you very much" it is: "Misotra betsaka"
for please they say please, and for thank you they say thank you...
In Pampango, you can say "Salamat" to say thank you.
You can say "Enkosi" to say 'thank you' in Xhosa.
In Hindustani, you can say "shukriya" to say thank you.
In Colombia, you can say "gracias" to say thank you.
How to say THANK YOU in Tagalog: Salamat
In the Philippines, you can say "Salamat" to express gratitude and say thank you.
In Dene, you can say "Mahsi cho" to say thank you.
In Berber, you can say "Tanemmirt" to say thank you.
In Tyrolean, you can say "Vergelt's Gott" to say thank you.
In Cambodia, you can say "Aw-kohn" to say thank you.