The Torrevieja - La Mata Line A schedule is as follows:

July and August
Every day. Every 15 minutes (from 7:30 a.m. to 11:00 p.m.)

June and September
Every day. Every 30 minutes (from 7:30 a.m. to 11:00 p.m.)

October – May
Monday – Friday. Every 30 minutes (from 7:30 a.m. to 10:00 p.m.)
Saturdays, Sundays, and holidays. Every 40 minutes. (from 7:30 AM to 10:00 PM)

You can check all bus lines and download the app to see the bus arrival time at your stop here:
https://costazul.net/lineas-urbanas/

The route that the bus line A Torrevieja - La Mata follows includes the following stops:

One Way
1- Hotel Fontana
2- Calle Fuensanta
3- Playa del Cura (Soraya)
4- Playa del Cura (Muebles Beatriz)
5- Playa de los Locos (Elena Building)
6- Playa de los Locos - Pub 222
7- Edificio Mar Bella
8- Urbanización Los Frutales
9- Panorama
10- Repsol Gas Station (Avenida Alfredo Nobel)
11- Hotel Masa
12- Cabo Cervera 1
13- Cabo Cervera 2
14- Torre del Moro - Lomas
15- Bar Magani
16- Carretera del Torrejón - (Molino Blanco)
17- Torrejón Road - Parque Mar
18- La Mata Health Center
19- Germany Avenue, corner
20- European Avenue - La Mata
21- Virgen del Carmen Avenue - La Mata
22- Sea Street - La Mata

Return
1- Mayor Street - La Mata
2- Daneses Avenue (petanque) - La Mata
3- European Avenue - La Mata
4- England Avenue, corner
5- Holland Avenue - La Mata
6- Belgium Avenue, corner
7- Morera Street - La Mata
8- Parque Mar
9- Torrejón Road (Molino Blanco)
10- Magani Bar
11- Torrejón Road, corner of Marconi Street
12- Cabo Cervera 1
13- Cabo Cervera 2
14- Hotel Masa
15- Repsol Gas Station (Alfredo Nobel Avenue)
16- Overview
17- Los Frutales Residential Complex
18- Mar Bella Residential Complex
19- Playa de los Locos (The Palm Grove)
20- Playa de los Locos (Domfi)
21- Playa de los Locos (Coloso)
22- Avenida de las Habaneras
23- Muebles Bahía
24- Bus Station
25- Avenida Diego Ramirez (Bar La Gaviota)
26- Calle San Policarpio (Torrevieja Television)
27- Hotel Fontana